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Light responsive plasmonic silicone elastomer/hydrogel soft actuator.

Eungyoul Oh, Yeonjae Lee, Hyunji Shim

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |September 10, 2022
    PubMed
    Summary
    This summary is machine-generated.

    This study presents a novel light-responsive soft actuator for untethered soft robots. The actuator, using plasmonic nanoparticles in silicone and hydrogel, demonstrates a rapid response to light, enabling new soft robotics applications.

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    Area of Science:

    • Robotics
    • Materials Science
    • Biotechnology

    Background:

    • Soft robots offer advantages for interacting with delicate biological specimens.
    • Untethered soft robots require efficient light-to-mechanical actuation methods.
    • Existing light-responsive actuators face challenges in response time and integration.

    Purpose of the Study:

    • To design and fabricate a novel light-responsive soft actuator.
    • To investigate the role of material composition in actuator performance.
    • To demonstrate the potential of this actuator for untethered soft robotic systems.

    Main Methods:

    • Fabrication of a silicone elastomer actuator embedded with plasmonic metal nanoparticles.
    • Integration of a temperature-sensitive hydrogel component.
    • Characterization of the actuator's response to external light stimuli.
    • Evaluation of the influence of carrier solvent on nanoparticle dispersion and performance.

    Main Results:

    • The selection of the carrier solvent for metal nanoparticle embedment was critical for actuator function.
    • The fabricated soft actuator exhibited a fast response time of less than 5 minutes under illumination.
    • The developed actuator successfully converted light energy into mechanical motion.

    Conclusions:

    • The developed light-responsive soft actuator shows promise for untethered soft robotics.
    • Material selection and fabrication methods are key to achieving efficient light-driven actuation.
    • This technology could advance applications in delicate organism manipulation and minimally invasive procedures.